Pain in the abdomen after intercourse is related to the following factors: 1, physiological pain in the abdomen, when intercourse, the male sexual organ of the female vagina, abdominal and pelvic cavity produces intense stimulation, women will produce pain, but due to sexual arousal, this pain is easy to be covered up, only after intercourse will be manifested, this pain is transient, will disappear on its own. 2, gynecological inflammatory disease, due to the woman itself has adnexitis, cervicitis or pelvic inflammatory disease The penis impact to the lesion will cause abdominal pain. 3, cystitis, women’s vagina and the front of the urethra and bladder close to the penis squeeze the front wall of the vagina, the front of the urethra and bladder pressure, so that the bladder itself has a lesion to produce a reaction and pain. 4, due to the coitus did not do a good job of warmth, so that the abdominal cold pain. 5, semen allergy after coitus women are also The pain can easily occur after coitus.